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/*! \file
    \brief Matrix multiply
*/

#pragma once

#include "cutlass/arch/mma.h"
#include "cutlass/complex.h"

#include "cutlass/layout/matrix.h"
#include "cutlass/gemm/gemm.h"

/////////////////////////////////////////////////////////////////////////////////////////////////

namespace cutlass {
namespace arch {

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, float, LayoutA, float, LayoutB, float,
           LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAdd;

    CUTLASS_HOST_DEVICE
    void operator()(Array<float, 1>& d, Array<float, 1> const& a,
                    Array<float, 1> const& b, Array<float, 1> const& c) {
        d[0] = a[0] * b[0] + c[0];
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, double, LayoutA, double, LayoutB,
           double, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAdd;

    CUTLASS_HOST_DEVICE
    void operator()(Array<double, 1>& d, Array<double, 1> const& a,
                    Array<double, 1> const& b, Array<double, 1> const& c) {
        d[0] = a[0] * b[0] + c[0];
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, int, LayoutA, int, LayoutB, int,
           LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAdd;

    CUTLASS_HOST_DEVICE
    void operator()(Array<int, 1>& d, Array<int, 1> const& a,
                    Array<int, 1> const& b, Array<int, 1> const& c) {
        d[0] = a[0] * b[0] + c[0];
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, complex<float>, LayoutA, complex<float>,
           LayoutB, complex<float>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<float>, 1>& d,
                    Array<complex<float>, 1> const& a,
                    Array<complex<float>, 1> const& b,
                    Array<complex<float>, 1> const& c) {
        d[0].real() = a[0].real() * b[0].real() + c[0].real();
        d[0].imag() = a[0].imag() * b[0].real() + c[0].imag();
        d[0].real() = -a[0].imag() * b[0].imag() + d[0].real();
        d[0].imag() = a[0].real() * b[0].imag() + d[0].imag();
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, complex<float>, LayoutA, float, LayoutB,
           complex<float>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<float>, 1>& d,
                    Array<complex<float>, 1> const& a, Array<float, 1> const& b,
                    Array<complex<float>, 1> const& c) {
        d[0].real() = a[0].real() * b[0] + c[0].real();
        d[0].imag() = a[0].imag() * b[0] + c[0].imag();
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, float, LayoutA, complex<float>, LayoutB,
           complex<float>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<float>, 1>& d, Array<float, 1> const& a,
                    Array<complex<float>, 1> const& b,
                    Array<complex<float>, 1> const& c) {
        d[0].real() = a[0] * b[0].real() + c[0].real();
        d[0].imag() = a[0] * b[0].imag() + d[0].imag();
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, complex<double>, LayoutA,
           complex<double>, LayoutB, complex<double>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<double>, 1>& d,
                    Array<complex<double>, 1> const& a,
                    Array<complex<double>, 1> const& b,
                    Array<complex<double>, 1> const& c) {
        d[0].real() = a[0].real() * b[0].real() + c[0].real();
        d[0].imag() = a[0].imag() * b[0].real() + c[0].imag();
        d[0].real() = -a[0].imag() * b[0].imag() + d[0].real();
        d[0].imag() = a[0].real() * b[0].imag() + d[0].imag();
    }
};

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, complex<double>, LayoutA, double,
           LayoutB, complex<double>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<double>, 1>& d,
                    Array<complex<double>, 1> const& a,
                    Array<double, 1> const& b,
                    Array<complex<double>, 1> const& c) {
        d[0].real() = a[0].real() * b[0] + c[0].real();
        d[0].imag() = a[0].imag() * b[0] + c[0].imag();
    }
};

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, double, LayoutA, complex<double>,
           LayoutB, complex<double>, LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAddComplex;

    CUTLASS_HOST_DEVICE
    void operator()(Array<complex<double>, 1>& d, Array<double, 1> const& a,
                    Array<complex<double>, 1> const& b,
                    Array<complex<double>, 1> const& c) {
        d[0].real() = a[0] * b[0].real() + c[0].real();
        d[0].imag() = a[0] * b[0].imag() + d[0].imag();
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Matrix multiply-add operation
template <
        /// Layout of A matrix
        typename LayoutA,
        /// Layout of B matrix
        typename LayoutB,
        /// Layout of C matrix
        typename LayoutC>
struct Mma<gemm::GemmShape<1, 1, 1>, 1, half_t, LayoutA, half_t, LayoutB, float,
           LayoutC, OpMultiplyAdd> {
    using Shape = gemm::GemmShape<1, 1, 1>;
    using Operator = OpMultiplyAdd;

    CUTLASS_HOST_DEVICE
    void operator()(Array<float, 1>& d, Array<half_t, 1> const& a,
                    Array<half_t, 1> const& b, Array<float, 1> const& c) {
        d[0] = float(a[0]) * float(b[0]) + c[0];
    }
};

/////////////////////////////////////////////////////////////////////////////////////////////////

}  // namespace arch
}  // namespace cutlass
